This looks very similar to a situation that we have run into with 4.4, where files in the bme/settings/system/Modules/ directory are corrupted after attempting to open the bme with an incorrect DISPLAY setting(we never ran into the problem with 4.3). If this has happened, *.xml files in the indicated directory will have the following parameter and corresponding value: <param name="enabled">false</param>. If this is the case, try changing these parameter values to <param name="enabled">true</param>. We use a script to change them all with no ill effects (don't forget to back up the directory in case this is not the problem)